Lock



Oct. l0, 1933. F. K. soLLlDAY LOCK Filed Aug. 17, 1931 Patented da. 1c,1933 "srrss LOCK Foster K. Solliday, Grand Rapids, Mich., assigner toNational lBrass Company, Grand Rapids,

Mich., a corporation ApplicationrAugnst 17,

K 9 Claims. This invention relates toa latch bolt key actuated operatingmeans, being concerned particularly with a novel means for operating alatch bolt from the `outer side of a door, incorporated Vwith which is alock cylinder, which must be key actuated and released by the key.

It is a primary object and purpose of the present invention toconstructs. esta i.' 1 operating device which may be applied to doorshaving diierent thicknesses, within a prescribed range, andalso'one'which in itself Vawtomatically compensates for discrepancies inthe work of car penters or others installing .the latch in the door,whereby a very practical, simple andv durable construction is producedand one in which one size of operating device may be used for variousthicknesses of doors.

A furtherV object of the invention is to 'provide, in a device of thisnature, .means whereby the outside key operated member may be caused tooperatively engage the latch bolt actuating means regardless of therotative position to which it may have been turned bymeans of the insideoperating device. I

An understanding of the invention, whereby the objects and purposesstated may be attained, as well as many others not at this time stated,may be had from the following description, taken in connection with theaccompanying drawing, in which, v

Fig. l is a vertical transverse section through a door having a latchinstalled therein, the key actuated operating means for the latch boltbeing shown in longitudinal section. f

Fig. 2 is an inner side elevation of the key actuated operating means ofmy invention.

Fig. 3 is a longitudinal vertical section through one form of latchwhich may be operated thereby.

Fig. e is a perspective view, with some parts in section, showing theseveral elements of the key actuated bolt operating means unassernbled..

Fig. 5 is a transverse vertical section through the device of myinvention near the inner end portion thereof, and Y Y Fig. 6 is alongitudinal vertical section through the device of myinvention, showingthe manner in which it is actuated by a key.

Like reference characters refer to like parts in the diierent figures ofthe drawing;

The latch bolt, which 'is to be operated by the device of my invention,may be any of several forms, one of which is shown in the drawing,particularly in Fig. 3. 1tl includes an outer cylindrical housing 1, aU-shaped member 3 which is adapted to be moved to retract the bolt byajrotatabl'e of Michigan 1.931., Serial No. 557,565

barrel 4 mounted across and horizontally in the housing 1. The barrel 4preferably has a'longitudinal slot therethrough of the rectangular shapeshown.' The specific character of the latch and of the bolt used thereinis not material in the present invention as it may be of varied form andwhether of the spring latch type as shown or a sliding bolt withoutsprings associated therewith is not of importance, so long as anoperating barrel or equivalent, such as indicated at a, having aproperly shaped opening therethrough or at the end where the operatingdevice is installed therewith, is used. The latch structure illustratedis nctor" my invention but is old and well known and has been built andsold for a considerable time as a product of the corporation to which Ihave transferred the present invention.

The latch bolt construction is designed to be mounted in a door 6 in acylindrical opening bored therein horizontally from the iree edge of thedoor; and transverseopenings oi proper size are bored in the sides ofthe door to communicate with the opening Vin which the latch isinstalled.

t the inner side of the door a knob operated mechanism is mounted formoving the latch bolt manually. This mechanism is indicated as a wholeat 7 and includes a loosely carried tongue 8 which extends into one endor" thelongitudinal opening 5 in the barrel 4. The knob operating`mechanism indicated at '7 is the subject matter of my Patent No.1,862,716, for Latch bolt operating means, issued June 14, 1932.

The device herein includes a relatively heavy housing 9 which has anoutwardly extending flange l0 with lugs 11 projecting therefrom to enterrecesses made in the outer side of the door. The lugs are interiorlybored and threaded and screws 12 pass through the inside bolt operatingmechanism '7 and through the door and are threaded into said lugswhereby both the inside `and the key actuated outside bolt 'operating-mechanism are secured to the door and held in fixed relation thereto.

Thehousing 9 has a longitudinal cylindrical opening 13 therethrough inwhich akey operated lock cylinder lll 'is' positioned. The structure ofthe lock cylinder itself is not of concernin the invention and may be astock article having a plurality of tumblers. At the inner side of theflange 1G, which extends from the housing 9, and in axial alinement withsaid housing, is an integral annular ilange 15, the construction ofwhich at the inner sides thereof is best illustrated in Fig. 4. Acircular plate 16 of flat metal is positioned at the inner end of thelock cylinder 14, located thereon by spaced pins 17 extending from theinner end of the barrel and secured in place by a screw 18. The disk 16at diametrically opposed sides is formed with notches or recesses 19 andthe housing 9 at its inner end and around the opening 13 therethroughhas an integrally projecting boss or lug 20 of a size slightly smallerthan the size of the notches 19 whereby the disk 16, attached to thelock cylinder 14, in its outer position as shown in Fig. 1, is engagedwith the lug 20 in either of two diametrically opposite rotativepositions and the lock barrel held from rotation until it has been movedinwardly to a position shown in Fig. 6 in which the lug 2G is free ofeither of the notches 19 in the disk 16.

A coiled compression spring 21 of light strength is located against theinner side of the disk 16 and bears thereagainst at one end. At theother and inner end of the spring a plate 22 is located which, atdiametrically opposite points, has tongues 23 struck therefrom in adirection to extend toward the disk 16. A dat member 24 has a reducedneck 25 passing through the plate 22 and is headed over a washer 26 soas to coi ect the member 24 with f the plate 22. rhe conne-tion is aloose one, thus permitting the member 24 to have a considerable degreeof swiveling movement.

A spring 29, having slightly more compression than the spring 21,surrounds the flat member 24 and engages the of the plate 22 oppositethe spring 2l and is held in place by a cover 39 which is provided witha central opening through which the dat member 24 extends. The cover 30is held in place by a split spring ring 27 which lies in an annulargroove 23 at the inner side and near the inner end of the iange 15.

The member 24 inserts into the adjacent end of the opening 5 through thebarrel 4 whereby, when turned, it will rotate said barrel to retract orextend the latch bolt 2 and the member 24 is longitudinally slidable inthe opening 5 whereby the plate 22 to which it is connected may bemovedin a direction longitudinal with its axis. The spring 29 normallythrusts the plate 22 against the shoulder 31 on which it may freelyrotate and the spring 21 normally moves the disk 16 and the key operatedlock cylinder 14, to which it is connected, in an outward direction andwhen said lock cylinder 14 and the disk 16 are in position where the lug20 will enter one of the notches 19, the disk 16 is out of engagementwith the tongues 23.

With the parte in the positions shown in Fig. 1 the plate 22 and thedisk 16 are free of each other and the latch bolt may be operated fromthe inner side of the door by turning the knob operating mechanism '7whereupon the member 24 and the plate 22 to which it is attached willrotate idly and without effect upon the operated lock cylinder 14.

In order to turn the bolt from the outer side of the door, a key 32 isinserted into the lock cylinder 14 which, by virtue of the constructionof the lock parts therein, retracts the tumblers in the vconventionalmanner and permits the lock cylinder to be rotated. Pressure in'aninward direction causes the lock cylinder and the disk 16 to moveinwardly disengaging the lug 20 from one of the notches 19 and enteringthe tongues 23 on the plate 22 with said notches 19 thus locking thedisk 16 and the plate 22 together whereupon rotation of the lockcylinder by means of the key will cause rotation of said plate 22 andthe flat member 24 which imparts like rotation to the barrel 4 toactuate the latch bolt 2.

Movement of the lock cylinder is intended only to retract the latch boltor in other words, to unlatch the door since the latch bolt isautomatically extended to latch the door when the operating means isreleased by means of springs forming a part oi its structure. Therefore,when the lock cylinder is rotated to either of lits diametricallyopposite positions in which a notch 19 is opposite the lug and allowedto be moved outwardly by the spring 21 to disengage the tongues 23 fromsaid notches 19 the latch bolt will be automatically extended.

It may be readily seen that certain parts or the mechanism, includingthe plate 22, may be turned by the inner knob operating mechanism l andinadvertently left in a position where the tongues 23 will not lieopposite the notches 19 and under such conditions, when the disk 16 ismoved inwardly with the lock cylinder 14 to operate the latch from theoutside the tongues 23 will be engaged by the unnotched portion of thedisk 16 which will cause the plate 22 to move inwardly compressing thespring 29. This movement may be suincient to release theV lug 20 from anotch 19 and to permit the lock cylinder 14 and disk 16 to be rotated toa position where the tongues 23 will enter the notches 19, the spring 29moving the plate 22 outwardly to cause such engagement, and then thedisk 16 and the plate 22 will be properly locked together so thatoperation of the latch bolt may be performed by rotation of the lockcylinder 14.

The construction described is of a thoroughly practical nature and hasproved very successful in practice. The swiveling attachment of themember 24 permits it to enter the opening 5 in the bolt operating barrel4 from several angles, thereby obviating binding and defects inoperation of the latch bolt through inaccuracies in installation. Themember 24 is comparatively long whereby `it may enter the opening 5 to agreater or less extent to actuate the bolt installed on doors havingdifferent thicknesses. The extent to which the member 24 enters theopening 5 is not of great importance so long as it enters far enough tomake a properengagement. With a thinner door than that shown in Fig. 1it enters farther into the opening 5, and with a thicker door it doesnot enter as far. This permits the use of one size of key actuated boltoperating mechanism in accordance with my invention for severaldifferent thicknesses of doors.

The mechanism is thoroughly operative under all conditions andparticularly when the latch bolt has been inadvertently turned to anunusual position whereupon the 'means previously described permitsinterengagement between the disk 16 and the tongues 23 on the plate 22regardless of the rotative position to which the plate 22 may have beenturned.

The invention is defined in the appended claims and is to be consideredcomprehensive of all forms of structure coming within 'their scope.

I claim:

1. Key actuated means for operating a latch bolt comprising, a housingmember adapted to be secured against a side of a door, a lock rotatablyand slidably mounted in said housing, a detachable notched disk securedto the inner end of the lock, an engaging member rotatably mounted insaid housing in axial alinement with the lock, spring means normallyseparating the lock and engaging member, and means on said engagingmember cooperating with a notch of said disk to connect the lock andengaging memstruck from said plate toward the disk, said disk having anotch at an edge thereof, and aV flat metal member loosely attached `toand projecting from the disk inwardly, as and for the purposesdescribed.

4. Latch bolt operating means comprising, a housing, an operating memberrotatably and slidably mounted in said housing, an engaging memberrotatably and slidably mounted in the housing in alinement with saidoperating member, means fastened to said engaging member and adapted forconnection with a latch bolt to actuate the same, interengaging means onsaid operating member and said engaging member respectively, means tolimit the movement of the engaging member in a direction toward saidoperating member, spring means normally thrusting said engaging membertoward said operating member, spring means normally separating saidengaging member and said operating member and yieldabiy holding them inposition where said interengaging means are disconnected.

5. Latch bolt operating means comprising, a housing, an operating memberrotatably and slidabiy mounted in said housing, an engaging memberrotatably and slidably mounted in the housing in alinement with saidoperating membei', means fastened to said engaging member and adaptedfor connection with a latch bolt to actua-te the sam interengaging meanson said operating member and said engaging member respectively, means tolimit the movement of the engaging member in a direction toward saidoperating member, spring means normally thrusting said engaging membertoward said operating member, spring means normally separating saidengaging member and said operating member and yieldably holding them inposition where said interengaging means are disconnected, and means toprevent rotation of saidoperating means when in outer position and topermit rotation thereof when the operating means is moved inwardlytoward said engaging member.

6, in combination, a housing, an operating member revolubly and slidablymounted therein, an engaging member revolubly and slidably mounted inthe housing in alinement with said operating member, a latch boltmechanism including a revoluble barrel mountedN in alinement with thesaid operating member, said barrel having an axial opening of irregularcross section therethrough, a member fixed to said engaging member andextending into said opening in the barrel, said member being adapted toslide in said opening but of such cross section as to prevent rotationwith respect thereto, spring means located betweenv the operating'member" and the engaging member and tending to maintain them in spacedapart position whereby rotation ofthe operating member does not causerotation of the engaging member, clutching means between the operatingmember and the engaging member, said clutching means becoming operativeupon movement of these members a predetermined distance toward oneanother, and yielding means for permitting movement of the operatingmember and the en` gaging member when they are in clutchedposition forthe purpose described.

7.' In combination, a housing, an operating member revolubly andslidably mounted therein, an engaging member revolubly and slidablymounted in the housing in alinement with said operating member, a latchbolt mechanism including a revoluble barrel mounted in alinement withthe said operating member, said barrel having an aXial opening ofirregular cross section therethrough, a member fixed to said engagingmember and extending into said opening inthe barrel, said member beingadapted to slide in said opening but of such cross section as to preventrotation with respect thereto, spring means located between theoperating member and the engaging member and tending to maintain them inspaced apart'positionI whereby rotation of the operating member does notcause rotation of the engaging member, clutching means between theoperating member and the engaging member, said clutching means becomingoperative upon move- Y ment of these members a predetermined distancetoward one another, a coiled spring surrounding the saidxed member andabutting against the said engaging means at one end, and a disk havingan opening through which the said fixed member passes, means forfastening the disk to the housing, said other end of the coiled springbearing against the disk.

8. Key actuated means for operating a latch bolt comprising, ia housingmember adapted to be secured against a side of a door, a lock rotatablyand slidably mounted in said housing, `a detachable notched disk securedto the inner end of the lock, an engaging member, means for detachablymounting said engaging member for revoluble movement in said housing,spring means normally separating the lock and engaging member, and meanson said engaging member cooperating with a notch of said disk to connectthe lock and engaging member together on moving the lock inwardlyagainst said spring means.

9. In combination, a housing, an operating member revolubly and slidablymounted therein, an engaging member rotatably and slidably mounted inthe housing in alinement with the operating member, spring means urgingsaid engaging member towards the operating member, stop means forpreventing the engagement between the operating member and the engagingmember due to the pressure exerted by the said spring means, andadditional spring means located between the operating member and theengaging member, said last mentioned spring means being of lesserstrength than the rst mentioned spring means for the purpose described.

FOSTER K. SOLLIDAY.

